Home / 23,391.34-32,280.09-12,780.74

Finding the Fourth Proportional to 23,391.34, 32,280.09 and 12,780.74

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Solution

The fourth proportional to 23,391.34, 32,280.09 and 12,780.74 is: 17,637.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,391.34 : 32,280.09 = 12,780.74 : x
  2. Step 2: Convert to fraction form
    23,391.34/32,280.09 = 12,780.74/x
  3. Step 3: Cross multiply
    23,391.34x = 32,280.09 × 12,780.74
  4. Step 4: Simplify right side
    23,391.34x = 412,563,470.24
  5. Step 5: Solve for x
    x = 412,563,470.24/23,391.34
  6. Step 6: Final answer
    x = 17,637.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.